예제 #1
0
    def apply_modifier(vpr_args, io_grid, seed=0):
        with Silence():
            vpr_context = VPRContext(vpr_args)

            placement = vpr_context.get_random_placement()
            placement.set_io(io_grid)
            calc = BBCalculator.create(placement)
            initial_cost = calc.compute_cost()
            modifier = get_modifier(placement, seed=seed)
            new_placement = modifier.get_placement()
        return new_placement.get_io_grid(), new_placement.get_grid()
예제 #2
0
파일: vpr.py 프로젝트: cfobel/pyvpr_example

if __name__ == '__main__':
    import sys

    args = _parse_args()
    vpr_args = ['./vpr', args.netlist_file, args.arch_file] + ('placed.out '\
            'routed.out -place_only -fast -nodisp -place_algorithm '\
            'bounding_box -seed %d' % args.seed).split(' ')

    print vpr_args
    vpr_context = VPRContext(vpr_args)
    new_placements = []

    placement = vpr_context.get_random_placement()
    calc = BBCalculator.create(placement)
    initial_cost = calc.compute_cost()
    for i in range(args.run_count):
        modifier = get_modifier(placement, seed=i)
        new_placement = modifier.get_placement()
        new_placements.append(new_placement)

    final_costs = []
    for p in new_placements:
        calc = BBCalculator.create(p)
        final_costs.append(calc.compute_cost())

    np_final_costs = np.array(final_costs)
    print 'Initial cost: %s' % initial_cost
    print 'Final costs: %s' % np_final_costs
    print 'Mean cost: %s' % np.mean(np_final_costs)